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1,5,7-Triazabicyclo[4.4.0]dec-5-ene (TBD) polymerizes rac-lactide (rac-LA) to form highly isotactic polylactide (PLA) with a Pm = 0.88, while meso-LA yields heterotactic PLA (Pm ~ 0.8) at −75 ◦C. The stereocontrol of… Click to show full abstract
1,5,7-Triazabicyclo[4.4.0]dec-5-ene (TBD) polymerizes rac-lactide (rac-LA) to form highly isotactic polylactide (PLA) with a Pm = 0.88, while meso-LA yields heterotactic PLA (Pm ~ 0.8) at −75 ◦C. The stereocontrol of the cryogenic-based ring-opening polymerization comes from a perfect imbrication of both chiral LA and the propagating chiral end-group interacting with the achiral TBD catalyst.
Keywords:
tbd catalyst;
tbd;
meso;
rac;
achiral tbd
Journal Title: Catalysts
Year Published: 2020
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Journal Title: Catalysts
Year Published: 2020
Link to full text (if available)
Share on Social Media: Sign Up to like & get
recommendations!